Fire-extinguisher.



D. E. Mum'. FIRE EXTINGUISHER. APPL'ICATION FILE DEC. 2611917- l302@29 v Patented May 6, 1919.

ri Si 6 Z3 e UNITED s'rlrrns reir DAVID EDWARD MUIR, 0F NEW' "IT'Z'RK, ASSIllG-NH 01E TWIYIKYTY-FIVE ONE HUNDREDTHS TO ROBERT GILET, 0F BROKIIJYN. T flllli Y'Dltli. T'WENTYSVE ONE-HUNDREDTHS TO HENRY A. STEli HUNDREDTHS TO THOMAS W. MCKNIGITI, @Le

xeon,

FIRE-EXTINGUISHEB..

...mmi..

Specification of Letters Patent,

Application filed December 26, 1917'. Serial No 208,829.

To all whom t lmay conce/rn.'

Be it known that I, DAVID E. More, u citizen of the United States, and u resident oli New York city, borough or the Bronx, in the county of Bronx und Stute of New York, have invented u new und linproved Fire-Ex tinguisher, of which the following is n full, clear!` und exact description.

My invention hns for its object to provide u` tire extinguisher. having nreceptacle disposed withinl un outer receptacle und containinga un expelling liuid under pressure which is retained `in the inner receptncle und which serres to expel n tire extingruishint; fluid of greater specilic. gravity than the expelling' fluid. troni the inner receptucle through the space between the inner und outer receptacles to the outlet in the o utcr receptacle. The expelling' lluid retained in the .inner recelitncle und flows to the space between the, inner und outer receptacle only when ull the lire extinguishing lluid is dis4 ehnrged l'roni the inner receptacle.

Another object of the'invention to pro- \'ide u lire extinguisher which muy he plueed in any position without.interfering with its usefulness.

Still nnother object of the invention is to provide u lire extinguisher t'roin which muy he discharged a. portion oit its contents wit-hout. endangering the operutiveness oi" the fire extinguisher ut u. considerable period thereu'tter. This i'nnkes it possible. to discharge the remainder of the fire extinguishing (luid ut sonic time luter under the ,suine operntive conditions us in the first instance,

dditionul objects ot the invention will uppeur in `the :following Specification in which the preterrtul Atorni of, my invention is described.,

ln the drawings, siinilur reference chorale ters reier to similnr parts in all the views, in which- Figure l is n sectional elevation showing in r lire extinguisher;

lfig. 2 is :1n enlarged fragmentary seetionul view illustrating' the discharge nozzle; und

Fig. 3 is nn enlarged fragmentary sec tionnl view illustrating the mire in the outer reoeiitucle which is eniplojif'ed in fillingu the lire extinguisher.

My lire extinguisher is of' the type in which there is u receptncle disposed within nn outer receptacle, there being u conununioutingA 'menus between the inner rtmeptocle und the pure between the ,inner und outer rc ee'litnclee. so thnt the pressure o'li u 'liuid in the inner receptacle will serve to dischurge through u nozzle u lire extinguishing `lluid contained between the rt-ieeptucles.

With this eluss ol lire extinguishers, there hns ulwuys heen dunner that n considerable :unount ot nir or other gus 'under pressure in the inner rece}. tucle` would reuch. the Spucc het-Tween (he inner und outer receptacles where there would he dunner ihut the gus would .slouliY leuk uwuy through thewulls of the outer receptucle becnuse ot' the pressure. This movement olf the gus under pressure YI'roni the inner receptnele to the. splice between the inner und outer reeeptucles would luke pineI :u times4 lmenuse ol u chungo of position ol' the lire cxtinc'uislier or in some enses lo* the disehurjl'e olf u portion ol the vtire exliue'uishil'ur tiuid through the nom/lle.

ln my inrention. the inner receptnrle inovubli7 intuinted within the outer receptncle, so that the inner reeeptucle will inove when .ne position ot` the lire extinguisher is changed. to preserve 'the sl'ntue of the fire extinguisher nt .fill tin'ies und so prevent the escupe oft the nus. or other fluid ot less spe,-

cilic gravity thun the lire extinguishing l'luid under pressure troni the inner receptacle to the spnce'betweeu the inne1 und outer receptacles with tiny chungo ot position ot the fire extinguisller. "In in v lire extinguisher the menus oll connnunicntion between the inner recei'itzusle und the space between the inner und outer roceptuclcs also controlled b v the construction :und the. disposnl ot the snid Ineens so that the uns under pressure :it the upper portion ot the inner reeeptucle will always serve, to :torce the itire extinguishing fluid ut the lower 'portion of the inner receptncle into the space between theA inner und outer receptueles und through 'the discharge 'nomic when the lutter .is opened without roteren ce tothe position of the lire extinguisher.

By' reterrine to the drnningrs it will be seen thut the. outer recepte. :le 5 is preferably eylii'idricul in sluipt, und that within thin outer receptncie 'there is disposed un inner receptacle (i which is also preterm-bly cylindrical in shape. The capacity of the inner receptacle 6 is considerably greater' than the capacity of the spa-ce between the inner receptacle 6 and the outer receptacle 5. The inner receptacle 6 has studs 7 which extend from its heads 8 and 9 and which are journaled in hearings 10 andll in the heads 12 and 18 of the outer receptacle 5. It will be understood that with this construction, it is possible for the inner receptacle 6 to rotate relatively to the outer receptacle 5. At one side of the axis of the inner receptacle 6, there is an orifice 14 in the head 8 of the inner receptacle 6, and an orifice 15 in the head 9 of the said inner receptacle.

Twotubes 16 and 17 are disposed in the inner receptacle `6, the tube 16 being secured to the head 8 at the oriice 14 and the tube 17 being secured to the head 9 at the orifice 15. The tube 16 extends to a. point at a short distance from the head 9 and the tube 17 extends to a point at a short distance from the head 8. These tubes 16 and 17 not only serve to afford communication between the interior of the receptacle 6 and the space between the receptacles 5 and 6, but they also serve to weight the side of the receptacle 6 at which the orifices 14. and 15 are disposed. With this construction, when the fire extinguisher is disposed on its side and with the axis of the inner receptacle 6 horizontal, the tubes 16 and 17 will always be disposed at the bottom ,of the inner receptacle 6, no matter how the outer receptacle 5 may be rotated. This insures that the tubes 16and 17 will at all times be covered by the tire extinguishing Huid 18 when the outer receptacle 5 is disposed horizontally, the gas under pressure which is preferably compressed air being disposed at all timesi above the fire extinguisher liuid 18.

Not only is it impossible for the compressed air to reach the tube 16 when the outer receptacle 5 is disposed in a horizontal position, but it will also be understood that while the compressed air disposed above the fire extinguishing fluid 18 will serve to force the fire extinguishing iud 18 through one or both of the tubes A16 and 17 to the space between the receptacles 5 and 6, it will be impossible for the compressed air in any quantity to escape to the space between the receptacles 5 and 6 when the outer receptacle 5 is inverted. .This is so, for whether the lire extinguisher is disposed in the position indicated in Fig. 1 of the drawings or is inverted, the compressed air will be disposed above the fire extinguishing fluid 18 in the inner receptacle 16 and it will press the fire extinguishing fluid 18 downwardly so that it may" travel upwardly in the tube 16 or 17 which at that time is spaced from the head 8 or 9 of the inner receptacle 6', which at that moment. is the bottom of the inner receptacle, The compressed air wiil also press downwardly the tire extinguishing fluid which may be contained in the other tube which is spaced from the head 8 or 9, which at the moment is the top ot the inner receptacle 6; the said compressed. air in the last mentioned tube will not reach. the. space between the inner receptacle 6 and the outer receptacle 5 until substantially all of the fire extinguishing fluid 18 in the inner receptacle 6 is forced therefrom.

The outer receptacle 5 has an orifice 19 with which is connected an outlet pipe 20 preferably secured to the side of the outer receptacle 5 and leading to a nozzle member 21. As best shown in Fig. Q of the drawings.y this nozzle member 21 has an orifice 2Q extending therethrough with a valve seat 28 at the outlet pipe 20 and a valve seat Q-l at its other end. The nozzle member 21 is also provided with a nozzle Q5 which leads from the orifice Q2 from a point between the valve seats 28 and 24. ln the said orifice 22, there is a valve stem Q6 with a valve Q7 for coperating with the valve seat and, a valve 28 for coperating with the valve The said valve stem 26 extends beyond the valve 28 and is provided with a thumb piece 29, a spring 80.be ing disposed around the valve stem 26. between the nozzle member 21 and the thumb piece 29 tor holding the valve 27 yieldingl'v on its valve seat 28. It will be understood that by pressing down on the thumb piece 29 against the tension of the spring 80, the valve 27 will be removed from its valve seat- 28 and the valve 28 will be forced against its valve seat 24 to lpermit the discharge of the tire extinguishing fluid through the nozzle 25.

The head 18 of the outer receptacle 5 has a threaded orifice 81 in which meshes a thread 82 on a valve member 88, the valve member 88 being provided with an orifice 84 extending' therethrough, the valve member 88 having a valve seat 85 at the inner end of the said orifice 84. ln the orifice 84, there is a valve spindle 86 having a valve '87 at its inner end for coperating with the valve seat 85. The valve 87 is held yieldingly on its seat 85 by a spring 88 which engages at one end the valve 87 and at the other end a cap 89 which is secured to the inner side of the head 18 by means of screw threads 40. There is an orifice 41 in the cap 89. The outer end of the valve member 88 has a threaded nipple 42 through `which the orifice 81 extends, the said nipple being provided with connection for a pump coupling. There is normally disposed on the valve member 88 around the nipple 42 a cap 18 having an orifice 44. through which the outer end of the valve spindle 86 is disposed. this outer end of the valve spindle being threaded to receive nuts 15, the said nuts engaging the cap 18 te hold the valve spindle titl the compi i ,scanso 36 outwzndly with. its 'valve 3"? at the valve seat 35 to make certain that the valve seat 35 is closed irrespectiveljg' ot the operation of the spring 3S. rilhe orifice itt and the orifice l lare in alineinent., not only with each other, but 'they are so positioned that the. inner .receptacle G may be rotated to dispose its orifice l5 in the saine alinement. '.l"here is also a port lf3 in the head i3 of the outer receptacle 5, and a port fil-l' in the head 9 of the inner receptacle 0, it beingr possible to rotate the inner roer .le (l, so that the port d?! will be disposed sub... .antially in alinement 'with the port 46. The ports do and 4f( are threaded, the port t6 being; n'ormally closed by a threaded plug; e8 and the port 47 being .normally closed by a threaded plug 4:9.

When filling the fire extinguisher, the receptacle 5 is inverted, the plugs t8 and 49 are removed, the plug 49 being removed through the port t6. The nozzle 25 may then be opened and the fire extinguishing fluid may then bc poured into the inner receptacle 6 and also into the space between the inner receptacle (3 and the outer recep tacle 5. "When a sufficient amo u nt of the fire extinguishing fluid is poured into the fire extinguisher, the ports f6 and 47 are closed by the plugs 118 and 4:9. The mits L5 and the cap 43 are then removed and a pump coupling is connected with the threaded nipple in a manner well understood, after which airis forced into the fire extinguisher which is preferably in the jviosition indicated in Fig. 'l with the orifice disposed sub stantially in alineinent with. the orifice Wien the pressure has reached a 'predetermined point in. the fire extinguisher, the pump comoling is removed, the cap 43 'is replaced and is secured in position by the nuts l5 as has been exjilained. rllhe receptacle 5 is then inverted which will cause any which may be disposed between the inner receptacle 6 `and the outer 'recepts-icle 5 to move to the head -"V'Y'lfien this has been done, the noazle l... is opone and the pres sure within the fire extingidslier 'will 'force the said air contained between the inner receptacle ti and the outer receptacle 5 out to the nozzle th rough the outlet pipe. 910. il'lllien all the air in the space between the inner receptacle G and the outer receptacle o has then been discha .1e nozzle should be closed. 'llhe uisher then ready' for service, and it 'w ll be 'understood that ssed air will be contained in the inner recei'itacle 5, no matter `to what cosi tio-n the lire extinguisher .may be united. llt will `also be understood. that with a dis-- charge oi a portion of th: lire extinguishing fluid, the com; "seed will not escape :from the inner 6 and the space v t gable (it and the Having thus described my invention, I claiin as new and desire to secure by Letters Patent:

l. ln a fire extinguisher, a receptacle, a second yreceptacle 'movably mounted within the first receptacle and having. two means leading in di flercnt directions and communieating 'at all times with the space between the inner and the outer receptacles, and discharge means 'for the outer receptacle.

2. ln a .fire extinguisher, a receptacle, a second receptacle pivoted within the first receptacle weighted at lone side of its axis and free to move relatively to the first receptacle, the second receptacle having means at all times communicating lwith the space between the inner and outer receptacles, and a discharge means for the outer receptacle.

3. ln a fire extinguisher, a receptacle, a second receptacle pivoted within the first receptacle and weighted at one side of its axis and having at its said side, means af fording cormnunication between the inner receptacle and the spa-ce between the first and the second receptacles, and discharge means for the first receptacle.

l. .ln a fire extinguisher, a cylindrical receptacle, a second cylindrical receptacle disposed within the first receptacle and pivoted to the latter on a longitudinal axis,- the second receptacle being weighted at one side of its airis and havingat its said side means affording communication between 4the second receptacle and the space between the first and the second receptacles, and discharge means for the first receptacle.

5.' ln a fire extinguisher, a receptacle, a second receptacle disposed within the first receptacle and pivoted theretd, the second receptacle having an outlet at one side of its axis, a. tube in the second. receptacle disposed substantially parallel with its axis and secured to the second receptacle at its outlet, and discharge means for the first receptacle.

6. ll'n a fire extinguisher, a receptacle, a second receptacle disposed within the first receptacle and pivoted thereto, the second receptacle having two orifices, one at each end and at one side of its axis, two tubes in 'the second receptacle secured thereto, one around each orifice, and discharge means for the rst receptacle.

7, ln a fire extinguisher, a cylindrical .re-- ccptacle, a secondcylindrical receptacle disposed within the first receptacle and pivoted thereto on a 'ng'itlulinal a." receptacle having au rlfce in each of its heads at one side oit axis, two tubes in the second receptacle disposed substantially parallel with the axis of the seco-nd recapm tacle and seciued to 'the heads of the second receptacle, one a round. each orifice.

8. ln a fire eatin isher, a. receptacle, a second receptacle disposed within, the first receptacle and provid-ai. with two outlets,

one at the top and the other at the bottom, two tubes in the. second receptacle secured thereto, one around each outlet, and discharge means for the first receptacle.

9. In. a fire extinguisher, a receptacle, a second receptacle disposed within the first receptacle and pivoted thereto, the second receptacle having an outlet at one side of its axis, a tube in the second receptacle disposed substantially parallel with its axis and secured to the second receptacle, a discharge for the first receptacle leading from one of its ends and a valve controlling the discharge.

10. In a fire extinguisher, a receptacle, a second receptacle disposed within the rst receptacle and provided with two outlets, one at the top and the other at the bottom, two tubes in the second receptacle secured thereto, one around each outlet, a discharge for the first receptacle leading from one of its ends and a valve controlling the discharge.

11. In a. fire extinguisher, a receptacle, a second receptacle pivoted within the first receptacle, the second receptacle having an outlet at one side 0f its axis, a filling port in the first receptacle adapted to register with the outlet, means to close the port, and discharge means for the rst receptacle.

12. In a fire extinguisher, a receptacle, a second receptacle pivoted within the first receptacle, the second receptacle having an outlet at one side of its axis, a tube in the second receptacle secured thereto around the outlet, a filling port in the first receptacle adapted to register ,with the outlet, means to close the port, and discharge means for the first receptacle.

13. In a fire extinguisher, a receptacle, a second receptacle disposed within the first receptacle and pivoted thereto, the second receptacle having two orifices, one at each end'and at one side of its axis, two tubes in the second receptacle secured thereto, one around each orifice, discharge means for the first receptacle, the first receptacle having a port at one end for registering with one of the outlets in the second receptacle, and means for closing the port.

14. In a fire extinguisher, a receptacle, a second receptacle disposed within the first receptacle and pivoted thereto, the second receptacle having two orifices, one at each end and at one side of its axis, two tubes in the second receptacle secured thereto, one around each orifice, the first receptacle having a port at one end for registering with one of the outlets in the second receptacle, means for closing the port, and a discharge outlet for the first receptacle leading from one of its ends.

15. In a fire extinguisher, a receptacle, a second receptacle disposed within the first receptacle and pivoted thereto, the second receptacle having two outlets one at each end at one side of its axis, two tubes in the second receptacle secured thereto, one around each outlet, the first receptacle having a port at one end for registering with one of the outlets in the second receptacle, means for closing the port, the first receptacle having another opening in one of its ends, means to close the last mentioned opening, and the second receptacle having an opening for registering with the second mentioned opening in the first receptacle, means to close the opening in the second receptacle, and discharge means for the first receptacle. v .i

16. In a fire extinguisher, a receptacle, a second receptacle smaller than the first receptacle and disposed therein, thc second receptacle being provided with means communicating at all times with the space between the first and second receptacles, a fire extinguishing fluid in the space between the two receptacles and also partially filling the second receptacle, a fluid of less specific gravity than the fire extinguishing fluid under pressure and filling the remainder of the second receptacle, discharge means 'for the first receptacle, and means to retain the second mentioned fluid in the second receptacle before and after a portion of the fire extinguishing fluid is discharged from the first receptacle irrespective of the position in which the fire extinguisher may be held.

17. In a fire extinguisher, a receptacle, a second receptacle smaller than the first receptacle and disposed therein, there being an orifice in the second receptacle, a tube disposed in the second receptacle and secured thereto around the orifice, a fire extinguishing fiuid in the space between the receptacles and also partially filling the second receptacle, a second fluid of less specific gravity than the fire extinguishing fluid under pressure and filling the remainder of the second receptacle, and discharge means for the first receptacle.

18. In a fire extinguisher, a receptacle, a second receptacle smaller than the first receptacle disposed therein and pivoted thereto,the capacity of the second receptaclebeing greater than the capacity of the space between the two receptacles, the second receptacle having an outlet 'at one side of its axis, a tube in the second receptacle disposed substantially parallel with its axis and secured to the second receptacle around its outlet, a fire extinguishing fiuid in the space between the two receptacles and als'o partially fillingthe second receptacle, a fiuid under pressure filling the remainder of the second receptacle, and discharge means for the first receptacle.

19. In a fire extinguisher, a receptacle, a second receptacle disposedwithin the first receptacle and pivoted thereto, the capacity moana@ of the second receptaclebeing greater than the capacity of the space between the two receptacles, the second receptacle having two outlets, one at each end at one side of its axis, two tubes in the second receptacle se cured thereto, one around each outlet, a fire extinguishing fluid disposed in the space between the two receptacles and also partially filling the second receptacle, a fluid under pressure filling the remainder of the second receptacle, and discharge means for the first receptacle. f

20. lin a. fire extinguisher, a receptacle, a second receptacle within the first receptacle and free to move relatively thereto at all times, the second receptacle having means communicating from its portion which at the moment is its bottom `with the space between the first and the second receptacles and irrespective of the position in which the fire extinguisher may be held, and discharge means for the first receptacle.

2l. lin a fire extinguisher, a receptacle, a second receptacle within the first receptacle and free to move relatively thereto at all times, the second receptacle having means communicating at all times from its portion which at the time is its bottom with the space between the first and the second receptacles and irrespective of the position in which the hre extinguisher may be held, and discharge means for the rst receptacle.

22. lin a re extinguisher, a receptacle, a second receptacle within the hrst receptacle and free to move relatively thereto at all times, the second receptacle having outlet means to the space between the rst and second receptacles which by the movement of the second receptacle relatively to the rst receptacle will at all times be at the bottom thereof regardless of the position of the first receptacle. l

23. lin a fire extinguisher, a receptacle, a second receptacle within the rst receptacle and free to move relatively thereto at all times, the second receptacle `having outlet means communicating at all times with the titl titi

space between the first and second receptacles which by the movement of the second receptacle relatively to the first receptacle will at all times be at the bottom thereof regardless of the position of the nrst revceptacle.

24;. ln a fire extinguisher, a receptacle, a second receptacle pivoted within the rst receptacle `and weighted at one side of its axis and having at its said side means adording at all times communication between the inner receptacle and the space between the first and second receptacles, and discharge means for the iirst receptacle.

25. ln a tire extinguisher, a receptacle, a second receptacle disposed within the first receptacle, the second receptacle having` two orifices, one at each ond, two tubes in the second rece tacle secured thereto, one

around each ori ce, and discharge means t'or ,the first receptacle.

receptacle and having means communicat-V ingat all times with the space between the first and second receptacles, and discharge means for the first receptacle.

27. In a lire extinguisher, a receptacle, a second receptacle pivoted within the first receptacle, the second receptacle being weighted at one side and having at its said side means affording at all times communication between the second receptacle and the space between the iirst and second receptacles. y

28. ln' a fire extinguisher, a receptacle, a second receptacle disposed within the first receptacle .movable relatively thereto and provided with'an outlet, a filling port in the first receptacle with which the outlet in the second receptacle is adapted to register, means for closing the filling port, and discharge means for the nrst receptacle.

29. ln a ire extinguisher, a receptacle` a second receptacle disposed within the firs receptacle and free to move relatively thereto, the second receptacle having means adording communication between the interior of the second receptacle and the space between the first and second receptacles which by the movement of the second receptaclevrelatively to the first receptacle will at all times be at the bottom thereof regardless of the position of the first receptacle, a filling port in the iirst receptacle with which the said means are adapted to register, means for closing the lilling port, and discharge means for the first receptacle.

30. lin a fire extinguisher, a receptacle, a second receptacle disposed within the rst receptacle movable relatively thereto and provided with an outlet and a port, two ports in the first receptacle adapted to register with the outlet and the lirst port, means to close the ports in the first receptacle', and discharge means for the first receptacle.

3,1. ln a fire extinguisher, a receptacle, a second receptacle disposed within they rst receptacle and movable relatively thereto, the second receptacle having two independent means disposed at opposite ends of the second receptacle, and communicating at all times with the space between the' irst and second receptacles.

32. ln a fire extinguisher, a receptacle, a second receptacle pivoted within the first receptacle and movable relatively thereto, the second receptacle having two indcpendent means disposed at opposite ends ot the second receptacle, and communicating at all times with the space between the first and second receptacles.

33. ln a lire extinguisher, a receptacle, a

second receptacle smaller than the rst receptacle and disposed therein, the second receptacle being provided with means communicating at 'all times with the space between the rst and the second receptacles, a fire extinguishing fluid in the space between the two receptacles andalso partially filling the second receptacle, a fluid of less specific gravity than the lire extinguishing .fluid under pressure and filling the remainder of the second receptacle, discharge means for the first receptacle, and means to retain the second mentioned Huid in the second receptacle before and after a portion of the fire extinguishing fiuid is dispensed from the first receptacle and irrespectlve of the posilion in which the fire extinguishei` may be eld.

34. In a ire extinguisher, a receptacle, a second receptacle Within the first receptacle, the second receptacle having means communicating from its portion which at the time is its bottom with the space between the lirst and the second receptacles and irrespective of the position in which the lire extinguisher may be held, and discharge means for the first receptacle.

DAVID EDWARD MUIR. 

